THECPROGRAMMINGLANGUAGE 学习笔记(欢迎交流 wegatron@gmail.com)
不同的 struct 之间可以根据其内存的存放规则进行强制类型转换...............................................................1
do{…}while(0)的妙用...........................................................................................................................................3
一些常用标准宏..................................................................................................................................................6
一个 c 语言的错误..............................................................................................................................................7
C 语言连等号基础...............................................................................................................................................7
c 语言常量和常量表达式的特性........................................................................................................................7
c 语言包含...........................................................................................................................................................7
字符串转换为数值函数......................................................................................................................................8
有符号字符和无符号字符..................................................................................................................................8
符号前后的计算优先级不定..............................................................................................................................8
c 语言操作符优先级..........................................................................................................................................8
宏#define 等的用法.............................................................................................................................................9
命令行参数..........................................................................................................................................................9
返回整数的 getchar.............................................................................................................................................9
c 语言的函数声明的两个缺陷.........................................................................................................................10
sizeof 操作符......................................................................................................................................................10
标准输入输出....................................................................................................................................................11
文件的输入输出................................................................................................................................................13
C 语言的可变参数函数....................................................................................................................................14
#pragma 预处理指令........................................................................................................................................15
#error..................................................................................................................................................................16
不同的 struct 之间可以根据其内存的存放规则进行强制类型转换
实例 1:
#include<stdio.h>
#include<string.h>
structaddr
{
intip;
charhost_name[100];
};
structaddr_in
{
intip;
charhost_name[100];
intother;
};
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